Effect of Ca on As release FROM FERRIC AND ALUM RESIDUALS
Dewatering of residuals containing arsenic (As) has attracted little research but will become increasingly important as As is removed from water by sorption to ferric or aluminum hydroxides. Lime conditioning proves to be an effective method for immobilizing As even at high pH. In contrast, increasi...
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| Veröffentlicht in: | Journal - American Water Works Association 2003-06, Vol.95 (6), p.108-118 |
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| container_title | Journal - American Water Works Association |
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| creator | PARKS, JEFFREY L. NOVAK, JOHN MACPHEE, MICHAEL ITLE, CORTNEY EDWARDS, MARC |
| description | Dewatering of residuals containing arsenic (As) has attracted little research but will become increasingly important as As is removed from water by sorption to ferric or aluminum hydroxides. Lime conditioning proves to be an effective method for immobilizing As even at high pH. In contrast, increasing pH with addition of caustic soda or soda ash leaches As from residuals. Soluble calcium appears to neutralize the negative surface charge on the hydroxide solids to enhance As sorption. In many cases, As‐containing residuals are stored in lagoons for months or even years. Although many parameters contribute to soluble As mobilization, the presence of calcium appears to assist in keeping As immobilized. |
| doi_str_mv | 10.1002/j.1551-8833.2003.tb10391.x |
| format | Article |
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Lime conditioning proves to be an effective method for immobilizing As even at high pH. In contrast, increasing pH with addition of caustic soda or soda ash leaches As from residuals. Soluble calcium appears to neutralize the negative surface charge on the hydroxide solids to enhance As sorption. In many cases, As‐containing residuals are stored in lagoons for months or even years. Although many parameters contribute to soluble As mobilization, the presence of calcium appears to assist in keeping As immobilized.</description><identifier>ISSN: 0003-150X</identifier><identifier>EISSN: 1551-8833</identifier><identifier>DOI: 10.1002/j.1551-8833.2003.tb10391.x</identifier><identifier>CODEN: JAWWA5</identifier><language>eng</language><publisher>Denver, CO: American Water Works Association</publisher><subject>Acids ; Alum ; Aluminum ; Applied sciences ; Arsenates ; Arsenic ; Calcium ; Carbonates ; Caustic soda ; Chemical reactions ; Drinking water ; Drinking water and swimming-pool water. Desalination ; Exact sciences and technology ; Hazardous materials ; Hydroxides ; Infiltration ; Lagoons ; Landfill ; Landfills ; Methods ; Modeling ; Pollution ; Public safety ; Sodium ; Sorption ; Treatment Plants ; Utilities ; Waste disposal ; Water treatment ; Water treatment and pollution</subject><ispartof>Journal - American Water Works Association, 2003-06, Vol.95 (6), p.108-118</ispartof><rights>Copyright© 2003 AWWA</rights><rights>2003 American Water Works Association</rights><rights>2003 INIST-CNRS</rights><rights>Copyright American Water Works Association Jun 2003</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4951-b2a41ac10eb2be9f12c150373a80d713be30b915e21737ea722a220f0a93675f3</citedby><cites>FETCH-LOGICAL-c4951-b2a41ac10eb2be9f12c150373a80d713be30b915e21737ea722a220f0a93675f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/41311526$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/41311526$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,1416,27922,27923,45572,45573,58015,58248</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14867549$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>PARKS, JEFFREY L.</creatorcontrib><creatorcontrib>NOVAK, JOHN</creatorcontrib><creatorcontrib>MACPHEE, MICHAEL</creatorcontrib><creatorcontrib>ITLE, CORTNEY</creatorcontrib><creatorcontrib>EDWARDS, MARC</creatorcontrib><title>Effect of Ca on As release FROM FERRIC AND ALUM RESIDUALS</title><title>Journal - American Water Works Association</title><description>Dewatering of residuals containing arsenic (As) has attracted little research but will become increasingly important as As is removed from water by sorption to ferric or aluminum hydroxides. Lime conditioning proves to be an effective method for immobilizing As even at high pH. In contrast, increasing pH with addition of caustic soda or soda ash leaches As from residuals. Soluble calcium appears to neutralize the negative surface charge on the hydroxide solids to enhance As sorption. In many cases, As‐containing residuals are stored in lagoons for months or even years. Although many parameters contribute to soluble As mobilization, the presence of calcium appears to assist in keeping As immobilized.</description><subject>Acids</subject><subject>Alum</subject><subject>Aluminum</subject><subject>Applied sciences</subject><subject>Arsenates</subject><subject>Arsenic</subject><subject>Calcium</subject><subject>Carbonates</subject><subject>Caustic soda</subject><subject>Chemical reactions</subject><subject>Drinking water</subject><subject>Drinking water and swimming-pool water. 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Desalination</topic><topic>Exact sciences and technology</topic><topic>Hazardous materials</topic><topic>Hydroxides</topic><topic>Infiltration</topic><topic>Lagoons</topic><topic>Landfill</topic><topic>Landfills</topic><topic>Methods</topic><topic>Modeling</topic><topic>Pollution</topic><topic>Public safety</topic><topic>Sodium</topic><topic>Sorption</topic><topic>Treatment Plants</topic><topic>Utilities</topic><topic>Waste disposal</topic><topic>Water treatment</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>PARKS, JEFFREY L.</creatorcontrib><creatorcontrib>NOVAK, JOHN</creatorcontrib><creatorcontrib>MACPHEE, MICHAEL</creatorcontrib><creatorcontrib>ITLE, CORTNEY</creatorcontrib><creatorcontrib>EDWARDS, MARC</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ABI/INFORM Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ABI/INFORM Trade & Industry (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ABI/INFORM Collection (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Business Premium Collection (Alumni)</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Business Collection (Alumni Edition)</collection><collection>ProQuest Business Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>ABI/INFORM Trade & Industry</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Business</collection><collection>ProQuest One Business (Alumni)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><jtitle>Journal - American Water Works Association</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PARKS, JEFFREY L.</au><au>NOVAK, JOHN</au><au>MACPHEE, MICHAEL</au><au>ITLE, CORTNEY</au><au>EDWARDS, MARC</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Ca on As release FROM FERRIC AND ALUM RESIDUALS</atitle><jtitle>Journal - American Water Works Association</jtitle><date>2003-06</date><risdate>2003</risdate><volume>95</volume><issue>6</issue><spage>108</spage><epage>118</epage><pages>108-118</pages><issn>0003-150X</issn><eissn>1551-8833</eissn><coden>JAWWA5</coden><abstract>Dewatering of residuals containing arsenic (As) has attracted little research but will become increasingly important as As is removed from water by sorption to ferric or aluminum hydroxides. Lime conditioning proves to be an effective method for immobilizing As even at high pH. In contrast, increasing pH with addition of caustic soda or soda ash leaches As from residuals. Soluble calcium appears to neutralize the negative surface charge on the hydroxide solids to enhance As sorption. In many cases, As‐containing residuals are stored in lagoons for months or even years. Although many parameters contribute to soluble As mobilization, the presence of calcium appears to assist in keeping As immobilized.</abstract><cop>Denver, CO</cop><pub>American Water Works Association</pub><doi>10.1002/j.1551-8833.2003.tb10391.x</doi><tpages>11</tpages></addata></record> |
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| subjects | Acids Alum Aluminum Applied sciences Arsenates Arsenic Calcium Carbonates Caustic soda Chemical reactions Drinking water Drinking water and swimming-pool water. Desalination Exact sciences and technology Hazardous materials Hydroxides Infiltration Lagoons Landfill Landfills Methods Modeling Pollution Public safety Sodium Sorption Treatment Plants Utilities Waste disposal Water treatment Water treatment and pollution |
| title | Effect of Ca on As release FROM FERRIC AND ALUM RESIDUALS |
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